Elastic-fluid turbine.



H., L. BART-0N. ELASTIC FLUID TURBINE. APPLIGATION'IILED MAR. 22, 1905. RENEWED 1mg. 1'1, 1908.

927,093. Patented July 6,1909

\ S M AEINIVENTOR. C, hm MA;

BY ow A TTORNEY 11v FACT.

I j I HENRY L. BARTON, OF PITTSBURG, PENNSYLVANIA, ASSIGNOR 'IO THE WESTINGHOUSE MACHINE COMPANY, A CORPORATION OF PENNSYLVANIA.

ELASTIC-FLUID TURBINE.

no. 927,093. I

'Applicatioii filed l l a rch 22, 1905, Serial No. 251,4 1.

To all whom it may concern:

Be it known that I, HENRYJJ. BART'oN, a citizen of the United States, and a resident of Pittsburg, in the county of Allegheny and State of-Pennsylvania, have invented a new and useful Improvement in Elastic-Fluid Turbines, of wh ch the following is a specification.

This invention especially relates to elasticr fluid turbines, although it is capable of being utilized in. certain types of blowers and OOH l: pressors'.

In the manufacture of turbines, blowers and compressors in which the blades and vanes thereof are calked into annularly extending channels arranged for their reception, it has been found that the thin edges of the blades and vanes during the gaging oper ations-these gaging operations primarily consist in twisting or turning the blades and vanes after having been secured in place, so that the fluid leaving the passages between the same will leave at the desired angle have a tendency to check or crack. This edge checking or cracking, which occurs adi jacent to the points where the blades'and vanes enter the channels, has been found to be more or less serious, and one'objcct of this invention has becnto overcome this tendency.

In Figure 1 of the drawings, I have attempted to illustrate a blade or vane not constructed in accordance with this invention, but showing, in an exaggerated manner, cracks or checks 7 as they have. been found to occur. Fig. 2 illustrates a blade secured in its holding element and having cut-away portion 8 immediately ad- ;iaccnt to the top walls of the channel in the holding element within which the blade is calked. From this View it will be seen. that by cutting 'the thin edges of the blade or vane, as the case may be, away, as illustrated,- the tendency to check or crack will be overcome, ,as the only portions of the edges which have a tendency to check or crack are removed. In Fig. 3 I have illustrated three blades or vanes mounted in the holding element and in this view the spacing or calking pieces between adjacent blades are shown. In Figs. 4 and 5 I have respcctively illustrated a blade and calking or spacing ioce. e

'It is 0 )vious that any desired contour may Specification of Letters Patent.

having plain parallel surfaces Patented m 6, 1909. Renewed December 1'7, 1908.' SerielNoi 468,057..

be given to the portions cut away, so long as the blade is not materially weakened.

Having thus described andillustrated the several ways oi putting this invention into notch.

2. In combination with a blade or vane holding element, a blade or vane having portions of its opposite edges, at points adjacent to the outer surface of saidelemcnt, cut away orotherwise removed to formasemicircular notch.

3. In combination with a blade or vane holding element-provided with a slot for the reception of said blades or vanes, blades or vanes having, portions of their edges at said element, cut away or otherwise removed to form a semi-circular points-adjacent to thesurlace of said ale .1

ment cut away or otherwise removed, and spacing members lying between said blades or vanes and adapted to be laterally distorted.

4. A blade or vane spacing member pro vided on two sidcs'with surfaces adapted to conform to the surfacesof the blades or vanes to which they are adjacent, two sides and a ridged top and depressed bottom. 5. In combination with a blade or vane holding element, a blade or vane having a portion of its edge cut away or otherwise is moved at a point adjacent to and removed from the gripping surface of said holding element.

6'; In combination with a .blade or vane holding element, a blade or vane having a portion 0 i s edge, at a oint adjacent to the outer surface of said e ement, cut awayor otherwise removed to form a concave notch.

7. In combination with a blade or vans holding element provided,with annndercut groove or channel, blades or vanes having their base portions cut away to conform to said groove or channel, the top arts of said portions cut away on a curve so t rat a section through blade or vane in the plane of the top of the groove or channel will not include the tips of the substantially crescent section of the said blade or vane.

8. In combination with a blade or vane 1 holding element, a blade or vane having pertions of its opposite edgescut away or otherwise removed at points adjacent to and removed from the gripping surfaces of said holding element.

holding element; a blade or vane having portions of its edges, at points adjacent to but removed from the mounting portions of the blade or vane, cut away or otherwise re moved to form a concave notch.

t 10. In combination with a blade or vane holding element, a blade or vane having portions of its edges, at points adjacent to but removed from the mounting portions of the blade or vane,- cut away or otherwise re moved. t

11. In combination in an elastic fluid turbine, a blade or vane holding element provided with a blade or vane holding slot,

blades or vanes, each having a portion of its edge cut away or otherwise removed, and spacing pieces located between adjacent b ades or vanes and adapted to be laterally expanded to secure said blades or vanes in said slots. 9. In combination with a blade or vane 12. In combination in an elastic fluid turbine, a blade or vane holding element provided with blade or vane mounting slots, a plurality of blades or vanes located within said slots, each blade or vane having a portion of its edge cut away, and nieans located between adjacent blades or vanes, for securing them in place in said slot.

In testimony whereof, I have hereunto subscribed my name this seventeenth day of March, 1905. a

HENRY L. BARTON.- \Vitnesses:

DAVID VVILLIAMs, JNo. S. GREEN. 

